'Let Us' in the Bible

Yet that it spread no farther among the people, let us severely threaten them, that they speak no more to any man in this name.

And after certain days Paul said to Barnabas, Let us go again and visit the brethren in every city, where we have preached the word of the Lord, and see how they do.

And there was a great clamour: and the scribes of the Pharisees side arising, contended, saying, We find no evil in this man; but if a spirit or an angel hath spoken to him, let us not fight against God.